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fraza
Frequent Visitor

Calculated Index column based on groups

Can anyone help me with this.?

 

WhatsApp Image 2021-09-28 at 18.36.20.jpeg

 

I need make the calculated column on the right hand side that only increments when the original field changes its value.

 

Noticed that the increments should keep increasing even though the a original group value may repeat the index should not.

 

Is there an option or some dax etc to achieve this?

1 ACCEPTED SOLUTION
V-pazhen-msft
Community Support
Community Support

@fraza 

This is logically not possible since you don't have a field to group by. As the workaround, you could add an index column and flag column before getting the rank, which is a bit confusing.

 

1. add an index column in power query

2. create a flag column 

Flag =
var current_=[Original]
var current_1= CALCULATE(MAX([Original]),FILTER('Table',[Index]=EARLIER([Index])-1))
var current_2 = CALCULATE(MAX([Original]),FILTER('Table',[Index]=EARLIER([Index])-2))
var index_1=CALCULATE(SUM('Table'[Index]),FILTER('Table',[Index]=EARLIER([Index])-1))
var index_2=CALCULATE(SUM('Table'[Index]),FILTER('Table',[Index]=EARLIER([Index])-2))
Return
IF(current_=current_1&&current_1=current_2,index_2,IF(current_=current_1,index_1,[Index]))
 
3. create the rank column

Vpazhenmsft_0-1633055760558.png

 

Paul Zheng _ Community Support Team
If this post helps, please Accept it as the solution to help the other members find it more quickly.

View solution in original post

1 REPLY 1
V-pazhen-msft
Community Support
Community Support

@fraza 

This is logically not possible since you don't have a field to group by. As the workaround, you could add an index column and flag column before getting the rank, which is a bit confusing.

 

1. add an index column in power query

2. create a flag column 

Flag =
var current_=[Original]
var current_1= CALCULATE(MAX([Original]),FILTER('Table',[Index]=EARLIER([Index])-1))
var current_2 = CALCULATE(MAX([Original]),FILTER('Table',[Index]=EARLIER([Index])-2))
var index_1=CALCULATE(SUM('Table'[Index]),FILTER('Table',[Index]=EARLIER([Index])-1))
var index_2=CALCULATE(SUM('Table'[Index]),FILTER('Table',[Index]=EARLIER([Index])-2))
Return
IF(current_=current_1&&current_1=current_2,index_2,IF(current_=current_1,index_1,[Index]))
 
3. create the rank column

Vpazhenmsft_0-1633055760558.png

 

Paul Zheng _ Community Support Team
If this post helps, please Accept it as the solution to help the other members find it more quickly.

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